Drop dispensing bottle



Aug. 27, 1940. E KmMEs I 2212,56?

DROI= DISPENSING BOTTLE Filed April 23, 1939 :Ill

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Patented Aug 27, 1940 UNITED STATES PATENT OFFICE Application April 23, 1938, Serial No. 203,951-

In Germany April 19, 1937 2 Claims.

The invention concerns a device which is particularly applicable as a cuticle remover inasmuch as it emits small quantities of cuticie dissolving liquid while the cuticle is being pushed 5 back. Existing devices of this kind or other dropsupplying devices consist of more or less complicated valve constructions in order to avoid the flow of excessive liquid.

As compared with existing devices this invention has the advantage of great simplicity in production and great reliability during use. The essence of the invention is that the device incorporates a cap which forms an intermediate container, which is fixed onto the main container.

By this means the flow of the liquid is only drawn from the limited contents of the intermediate container so that even with a considerably emptied main container, and thus, in spite of a bigger contents of air, not more liquid than required is released. 'Apart from that, after 'one fiiling is used up, the main container may be exchanged for a fresh, full one and any possible loss of liquid when pouring in is avoided.

A tight closing necessary for storage is assured by the provision inside the cap of a cone-shaped plug, preferably of an elastic material, f. i. rubber, which goes through the intermediate container and at the top where it projects through the intermediate container it normally forms a liquid- 80 tight barrier, but can be retracted to allow the delivery of liquid by the application of a force against the self-pressure of the rubber plug. When the device is directed used as cuticle remover this plug serves at the same time for push- 35 ing back the cuticle. It can be so arranged that the bottom part of the plug rests on, or forms, a part of an elastic membrane which provides the counterforce for pressing the plug through the top opening and separates the main container 40 from the intermediate container said membrane being formed with small holes for the passage of the liquid. This membrane or disc can be made to fulfill yet another function if it is clamped between the opposite parts of the intermediate 45 and main containers, so that it forms at the same time a washer which seals the connection between these parts.

The accompanying drawing shows a form of the invention.

The iigure shows an example with membrane, partly in longitudinal section. w

In the form shown, the cap 2 is screwed onto the main container I so that the rubber membrane 3 is wedged between the opposed surfaces.

55 The membrane I is formed with passage holes lf The action is as follows:

When not in use the plug 5 with its cone-shaped outside surface stopsup the opening 8, against which it is pressed by the resilience of the membrane 3. When the plug is pressed against the 5 nail it is pushed away from the opening leaving it open for a drop guided to the part of the nail to be treated. The membrane 3 avoids a continuous, free flow of liquid as it keeps the small contents of liquid in the cap 2 until the plug is 10 again pushed forward and back again.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what -I claim is: 15

1. In a drop dispensing device, an open ended container, a cap removably secured on said container, said cap having a discharge aperture, a control valve formed of resilient material and comprising an apertured disc clamped at its pe- 2d riphery between the open end of'the container and the cap, and an integrally upstanding stem extending within the cap, the stem serving to normally seal the aperture of the cap, said control valve being displaced inwardly of the cap and the container upon application of pressure against the stem to provide a partial unsealing of the cap aperture against the tension of the disc, whereby to permit liquid from the container and passing through the apertures of the disc into the cap to be discharged through the partially unsealed central cap aperture, the cap aperture being sealed again upon return of the valve to its normal position through release of pressure on the stem thereof. 86

2. In a drop dispensing device, an open ended container, a cap removably secured on said container, said cap having a discharge aperture, a control valve formed of resilient material and comprising an apertured disc clamped at its pe- 40 riphery between the open end of the container and the cap to form a chamber. and an integrally upstanding conically tipped stem extending within the cap, the tip of said stem serving to normally seal the aperture of the cap, said control valve being displaced inwardly of the cap and the container upon application of pressure against the stem tip to provide a partial unsealing of the cap aperture against the tension of the apertured disc. whereby to permit liquid from the W container and passing through the apertures of the disc into the cap chamber to be discharged through the partially unsealed central cap aperture, the cap aperture being sealed again upon return of the valve to its normal position through release of pressure on the stem thereof.

RICH 

